AD8340 데이터 시트보기 (PDF) - Analog Devices
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AD8340 Datasheet PDF : 20 Pages
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Data Sheet
–142
–143
–144
–145
–146
RF PIN = +5dBm
–147
–148
–149
RF PIN = 0dBm
RF PIN = –5dBm
–150
–151
NO RF INPUT
–152
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
GAIN SETPOINT
Figure 9. Output Noise Floor vs. Gain, Noise in dBm/Hz, No Carrier,
With Carrier (20 MHz Offset) PIN = −5 dBm, 0 dBm, and +5 dBm
0
–2
GAIN SETPOINT = 1.0
–4
–6
–8
GAIN SETPOINT = 0.5
–10
–12
–14
–16
–18
–20
GAIN SETPOINT = 0.1
–22
–24
700
750
800
850
900
950
1000
FREQUENCY (MHz)
Figure 10. Gain vs. Frequency at Different Gain Setpoints
(700 MHz to 1000 MHz), Phase Setpoint = 0°
–145
–146
–147
–148
–149
–150
–151
–152
700
750
800
850
900
950
1000
RF FREQUENCY (MHz)
Figure 11. Output Noise Floor vs. Frequency, Maximum Gain,
No RF Carrier, Phase Setpoint = 0°
AD8340
0
–0.5
–1.0
–1.5
–2.0
–2.5
700
750
800
850
900
950
1000
FREQUENCY (MHz)
Figure 12. Gain Flatness vs. Frequency, Maximum Gain, Phase Setpoint = 0°
0
–10
–20
–30
FUNDAMENTAL POWER, 879MHz, 881MHz
–40
–50 SECOND BASEBAND HARMONIC PRODUC T,
878MHz, 882MHz
–60
–70
–80
THIRD BASEBAND HARMONIC PRODUC T,
877MHz, 883MHz
–90
–100
100
200 300 400 500 600 700 800 900
DIFFERENTIAL BASEBAND INPUT LEVEL (mV p-p)
(I OR Q CHANNEL DRIVEN AT 1MHz)
1000
Figure 13. Baseband Harmonic Distortion
(I and Q Channel, RF Input = 0 dBm,
Balun and Cable Losses of Approximately 2 dB Not Accounted for in Plot)
14
TEMP = +25°C
12
TEMP = –40°C
10
8
TEMP = +85°C
6
4
2
0
700
750
800
850
900
950
1000
FREQUENCY (MHz)
Figure 14. Output 1 dB Compression Point vs. Frequency and Temperature,
Maximum Gain, Phase Setpoint = 0°
Rev. C | Page 7 of 20
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